Thanks for that, Triem23! That worked really well and was a great help! I need to tweak it a bit but it worked for what I needed. The glow on the ground is starting to look awesome but I need to add a glow to the person walking away from the portal now. Now, if I can figure out how to remove the car that shows up in one shot and the immediate next shot (from a completely different angle shot on a separate day, mind you) is gone. ;P